Phys. Rev. C 67, 034320 (2003) [14 pages]Transition strengths and band terminations in 86ZrReceived 19 November 2002; published 31 March 2003 High angular momentum states in 86Zr were populated through the 58Ni(32S,4p) reaction at 135 MeV using the 88-In. Cyclotron at Lawrence Berkeley National Laboratory. Recoiling 86Zr nuclei were stopped in a thick Ta backing. Prompt multi-γ coincidences with evaporated charged particles were detected using the full array of GAMMASPHERE and the MICROBALL. Mean lifetimes of 36 levels in 86Zr were measured using the Doppler-shift attenuation method. Transition quadrupole moments Qt were found in the range of about 0.3–1.5eb in the positive-parity bands. The negative-parity bands show Qt values from about 0.25 to 1.2eb. In the yrast positive-parity band, a sharp drop in collectivity approaching the 30+ state supports the interpretation of band termination in this configuration. Decreasing Qt values approaching the 24+ and 27- states also provide an indication of terminating structures. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.67.034320
DOI:
10.1103/PhysRevC.67.034320
PACS:
21.10.Ky, 21.10.Tg, 23.20.-g, 27.50.+e
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